Computer Science
Write the name of following law and verify using truth table:
a(b + c) = ab + ac
Boolean Algebra
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Answer
a(b + c) = ab + ac is distributive law.
Truth Table
| a | b | c | b+c | a.(b+c) | a.b | a.c | a.b + a.c |
|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
| 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
| 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 |
| 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
As columns "a(b + c)" and "ab + ac" have same values, hence the expression is proved.
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